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The coefficient of linear expansion of ordinary glass is three times that of Pyrex glass.An ordinary glass rod and a Pyrex glass rod of equal lengths at room temperature are dropped into boiling water.The change in length of the ordinary glass rod will be __________ times the change in length of the Pyrex glass rod.
Professional Meetings
Gatherings or conferences for professionals in a specific field to discuss recent advances, research, and issues relevant to their area of expertise.
Social Gatherings
Events where people come together to interact for personal, social, or professional purposes.
Research Proposal
A detailed plan outlining the intent, methodology, expected outcomes, and significance of a proposed research project.
Internal Validity
The extent to which a study can rule out or make unlikely alternative explanations of the results.
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